CN213376223U - Pulping equipment - Google Patents

Abstract

The application discloses a pulping device, which comprises a feeding device for supplying powder, a liquid supply device for supplying solution and a mixing device capable of mixing the powder and the solution; after the powder enters the first conveying pipeline through the feeding hole, the thread section of the double-screw mechanism can push the powder to feed forwards, and the meshing section of the double-screw mechanism can extrude and knead the powder, so that the fineness and the mixing degree of the powder are improved, and the pretreatment of the powder is better realized; the pretreated powder is input into the mixing device through a second conveying pipeline; meanwhile, the solution is input into the mixing device through the liquid supply device; the mixing device finally realizes the mixing of the powder and the solution.

Description

Pulping equipment

Technical Field

The application relates to the technical field of powder-liquid mixing devices, in particular to pulping equipment.

Background

Pulping is an important step in the production process of lithium ion power batteries, and the quality of the pulp directly affects the quality, service life and safety of the lithium ion batteries. There are three types of common pulping equipment in the market today: the double-planet stirrer realizes the mixing of powder and solution by mutually matching two stirring paddles, and the pulping efficiency of the equipment is low; the double-screw extrusion equipment is used for mixing and homogenizing powder and solution by matching double screws, and is limited by the precision of a feeding system, high in raw material loss rate in the mixing process and capable of directly influencing the quality of the battery; and thirdly, the high-speed dispersion machine realizes the mixing of powder and solution through a blade rotating at a high speed, and the mixing effect of the equipment is common.

Disclosure of Invention

The application provides a pulping equipment to solve among the prior art powder and solution mixing efficiency low, the mixed effect subalternation problem.

In order to solve the technical problem, the application adopts a technical scheme that: providing a pulping apparatus comprising: the feeding device is used for inputting powder; the liquid supply device is used for inputting the solution; the mixing device comprises a mixing chamber, the mixing chamber is communicated with the feeding device and the liquid supply device, and powder and solution are mixed into slurry in the mixing chamber; the feeding device comprises: the first conveying pipeline is provided with a feeding hole, and powder enters the first conveying pipeline through the feeding hole; the double-screw mechanism is arranged in the first conveying pipeline; the double-screw mechanism comprises two screws arranged side by side, and a thread section and an engaging section are arranged on any screw; the meshing sections of the two screws are meshed with each other, and when powder flows through the meshing sections, the meshing sections of the two screws knead the powder; the second conveying pipeline is communicated with the first conveying pipeline and the mixing device; the conveying directions of the first conveying pipeline and the second conveying pipeline are different.

Further, the liquid supply device includes: the output end of the second conveying pipeline penetrates through the flow gathering channel; the plurality of flow dividing pipelines are arranged at the input end of the flow gathering channel at intervals and communicated with the flow gathering channel; wherein the inner wall of the flow gathering channel is inclined towards the output end of the second conveying pipeline; the solution input by the shunt pipeline is guided by the inner wall of the flow gathering channel and flows into the mixing chamber.

Furthermore, the diversion pipeline and the flow gathering channel are arranged at an angle, and the solution output by the diversion pipeline flows to the inner wall of the flow gathering channel in an inclined mode.

Further, the mixing device further comprises a stirrer arranged in the mixing chamber; the agitator includes: the rotary table main body is in a round table shape; stirring vane, stirring vane's terminal laminating carousel side surface setting, and the central axis slope of stirring vane lengthwise extension line relative carousel.

Furthermore, the mixing device also comprises a cooling chamber, and the mixing chamber is arranged in the cooling chamber; the cooling chamber is provided with a water inlet and a water outlet, and cooling liquid enters the cooling chamber through the water inlet and is finally discharged through the water outlet.

Further, the first conveying pipeline is horizontally arranged; the two screws are arranged in the first conveying pipeline side by side along the horizontal direction; and/or the second conveying pipeline is vertically arranged.

Furthermore, the feeding device also comprises a screw mechanism which is arranged in the second conveying pipeline; the screw mechanism comprises a screw rod and a screw driving assembly, wherein the screw driving assembly is connected with the screw rod and can drive the screw rod to rotate, and then powder is pushed to feed the mixing device.

Further, the thread sections and the meshing sections on the screw are alternately arranged; the screw thread section comprises a feeding screw thread section and a discharging screw thread section, and the feeding hole faces the feeding screw thread section; the discharging thread section faces the second conveying pipeline; the engaging section is disposed between the feed screw section and the discharge screw section.

Furthermore, the threaded section also comprises an auxiliary threaded section, the auxiliary threaded section is arranged between the meshing sections and divides the meshing sections into a first meshing section and a second meshing section.

Furthermore, the first conveying pipeline is also provided with a liquid inlet, and the solution enters the first conveying pipeline through the liquid inlet and is premixed with the powder.

The application provides a pulping device, which comprises a feeding device for supplying powder, a liquid supply device for supplying solution and a mixing device capable of mixing the powder and the solution; after the powder enters the first conveying pipeline through the feeding hole, the thread section of the double-screw mechanism can push the powder to feed forwards, and the meshing section of the double-screw mechanism can extrude and knead the powder, so that the fineness and the mixing degree of the powder are improved, and the pretreatment of the powder is better realized; the pretreated powder is input into the mixing device through a second conveying pipeline; meanwhile, the solution is input into the mixing device through the liquid supply device; the mixing device finally realizes the mixing of the powder and the solution.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:

FIG. 1 is a schematic structural view of a pulping apparatus provided herein;

FIG. 2 is a schematic cross-sectional view of the pulping apparatus of FIG. 1;

FIG. 3 is an enlarged schematic view of the structure within the circle in FIG. 2;

FIG. 4 is a schematic perspective view of an agitator provided herein;

FIG. 5 is a schematic top view of the blender of FIG. 4;

FIG. 6 is a schematic structural view of a twin screw mechanism provided herein;

FIG. 7 is a perspective view of a screw of FIG. 6;

FIG. 8 is a schematic view of a structure of an engagement section of FIG. 7;

fig. 9 is a front view of the engagement section of fig. 8.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The application discloses pulping equipment includes: a feeding device 100 for inputting powder; a liquid supply device 200 for inputting a solution; the mixing device 300, the mixing device 300 includes a mixing chamber 310, the mixing chamber 310 is communicated with the feeding device 100 and the liquid supply device 200, and the powder and the solution are mixed into slurry in the mixing chamber 310.

The supply device 100 includes: the first conveying pipeline 110 is provided with a feeding hole 111, and the powder enters the first conveying pipeline 110 through the feeding hole 111; a twin-screw mechanism 120 disposed in the first conveying pipe 110; the twin-screw mechanism 120 comprises two screws arranged side by side, and a threaded section 121 and an engaging section 122 are arranged on any screw; the meshing sections 122 of the two screws are meshed with each other, and when powder flows through the meshing sections 122, the meshing sections 122 of the two screws can knead the powder; a second delivery duct 140 communicating the first delivery duct 110 and the mixing device 300; the first and second delivery pipes 110 and 140 have different delivery directions.

During pulping, one or more powder materials can be mixed with the solution; similarly, the solution mixed with the powder may be one or more. For example, when preparing positive electrode slurry of a lithium ion power battery, the powder can adopt NCM (ternary material) and SP (conductive agent), and the solution can adopt CNT (carbon nano tube colloidal solution) and PVDF (polyvinylidene fluoride colloidal solution). For example, when preparing negative electrode slurry for lithium ion power batteries, graphite and SP (conductive agent) can be used as powder, and SBR (styrene butadiene rubber cement) and CMC (cellulose cement) can be used as solution.

It will be readily appreciated that the smaller the particle size of the powder, the easier it will be to mix the powder with the solution, while other variables remain unchanged during mixing of the powder with the solution. The double-screw mechanism 120 is arranged, on one hand, the forward feeding of the powder and the liquid can be realized through the thread section 121 on the screw rod; on the other hand, the engaging section 122 on the screw can extrude and knead the powder, further refine the powder and facilitate the dissolution of the powder. Further, when the powder includes a plurality of solid materials, the engaging section 122 can pre-mix the powder while refining the powder, so that the powder is mixed together before dissolving in the solution, thereby optimizing the powder state and improving the mixing efficiency.

Referring to fig. 1 and 2, on the same screw, a threaded section 121 and an engagement section 122 are coaxially arranged. The twin screw mechanism 120 further comprises a screw drive assembly 123 for driving the two screws in the same direction. The screw driving assembly 123 may include two screw driving members, each of which is connected to one screw; in this manner, either screw can be independently rotated. Alternatively, the screw drive assembly 123 may include only one screw drive, connecting one of the screws; meanwhile, the screw driving assembly 123 further includes a linkage member to link the two screws; thus, the rotation of the two screws is realized by one screw driving piece.

Wherein, the screw driving piece can adopt a motor and other rotation driving components; the linkage can adopt a synchronous belt assembly, a gear assembly or a brake and the like.

Further, the threaded section 121 is a continuous convex (or concave) portion formed along a spiral line on the rod; when the screw rotates, the continuous threads provide a feeding force to the powder to guide the powder to move forward.

Further, the engagement section 122 includes a plurality of coaxially disposed engagement members 1221. A plurality of engagement members 1221 are angularly disposed; referring to fig. 8 and 9, a plurality of engagement pieces 1221 are attached together, and since the engagement pieces 1221 are different in torsion angle from each other, as viewed in fig. 9, any engagement piece 1221 has portions protruding from each other and also has portions "covered" by each other. Referring to fig. 8, when the engagement sections 122 of the two screws are engaged with each other, the engagement members 1221 correspond one-to-one, and the portion of the engagement member 1221 protruding from one screw can extend into the portion of the engagement member 1221 "covered" on the other screw, so that the corresponding two engagement members 1221 are adjacent to each other or interact with each other. Thus, the meshed engagement sections 122 on the two screws can interact at multiple angles, and the kneading degree of the powder is improved.

In addition, the feeding device 100 has a first conveying pipe 110 for feeding and is matched with a double-screw mechanism 120 to realize the pretreatment of the powder. And the second transfer duct 140 is used to rapidly transit the pretreated powder so that the powder enters the mixing device 300.

As will be readily appreciated, to ensure good kneading of the powder by the twin screw mechanism 120, it is preferred that the powder is fed forward only by the feed force of the screw flights 121. For example, the first conveying pipe 110 may be horizontally disposed, or the first conveying pipe 110 may be obliquely disposed from bottom to top; at this time, after the powder enters the first conveying pipeline 110 through the feeding hole 111, the powder is not influenced by self gravity, does not actively flow towards the second conveying pipeline 140, and can only move forwards after being fed by the threaded section 121; in this way, the powder is better within the action of the screw, which ensures that the powder is kneaded in the intermeshing section 122.

The second conveying pipeline 140 is used for conveying the pretreated powder, and the powder is convenient to work by other mechanisms without overcoming the gravity; the powder in the second transfer conduit 140, preferably under the influence of its own weight with respect to the first transfer conduit 110, facilitates the rapid passage of the powder to the mixing device 300. For example, the second conveying pipe 140 may be vertically disposed, or the second conveying pipe 140 may be obliquely disposed from top to bottom; the mixing device 300 is disposed below the second conveying pipe 140; at this time, the powder material will naturally fall along the second conveying pipe 140 and rapidly enter the mixing device 300.

In summary, the purpose of the first conveying pipeline 110 is different from that of the second conveying pipeline 140, and the conveying directions of the first conveying pipeline 110 and the second conveying pipeline are different, so that the pretreatment and circulation of the powder can be better satisfied.

In one embodiment, referring to fig. 1 and 2, the first delivery conduit 110 is horizontally disposed; the two screws are arranged in the first conveying pipeline 110 side by side along the horizontal direction; while the second delivery conduit 140 is disposed vertically. At this time, the powder is fed into the first conveying pipe 110, and is pressed and kneaded by the engaging section 122 while being fed to the second conveying pipe 140 by the force of the screw section 121. The powder is pretreated and enters the second conveying pipeline 140, and finally falls into the mixing device 300.

Further, the first conveying pipe 110 is provided with an inlet 112, and the solution can enter the first conveying pipe 110 through the inlet 112 to be premixed with the powder.

It will be readily appreciated that for uniformly mixing a plurality of powders, it is preferable to mix the powders with the solution. For this purpose, the first conveying pipe 110 is fed with a proper amount of solution and premixed powder; the premixed powder has a certain solid content and is in a state of being easily mixed.

The specific liquid inlet amount is controlled according to the preset solid content. After a suitable amount of solution is fed in through the inlet 112, the solution is fed forward through the thread segments 121; in the engaging section 122, the solution and the powder are kneaded together to form a coarse slurry which is convenient to dissolve and mix again; the raw slurry enters the second transfer conduit 140 and is ultimately fed into the mixing device 300.

In addition, when different powder materials are mixed with a solution, due to the action of contact angles and surface tension, the phenomenon of coexistence of three phases of gas, liquid and solid exists in the mixing process, so that agglomeration is easily formed, and at the moment, the agglomeration needs to be broken up through kneading action to fully infiltrate the powder. Meanwhile, in the meshing section 122, the smaller the gap between the adjacent meshing pieces 1221, the better the kneading effect.

Further, the feeding device 100 further comprises a screw mechanism 130 disposed in the second conveying pipe 140, and the feeding device 100 further comprises a screw mechanism 130; the screw mechanism 130 comprises a screw rod 131 and a screw driving assembly 132, wherein the screw driving assembly 132 is connected with the screw rod 131 and can drive the screw rod 131 to rotate, thereby pushing the powder to feed to the mixing device 300.

By providing the screw mechanism 130, the movement of the powder to the screw mechanism 130 can be accelerated. Specifically, the screw driving assembly 132 may employ a rotary driving member such as a motor; the screw rod 131 is provided with blades arranged along a spiral line; the screw driving unit 132 drives the screw rod 131 to rotate, and the blades can give a feeding force to the powder moving to the mixing device 300. On the one hand, the screw 131 is able to guide the powder to move rapidly towards the mixing device 300; on the other hand, the screw 131 can agitate the premixed raw slurry.

Further, the screw thread sections 121 and the meshing sections 122 are alternately arranged; the screw thread section 121 comprises a feeding screw thread section 1211 and a discharging screw thread section 1212, and the feeding port 111 faces the feeding screw thread section 1211; the discharge thread segment 1212 faces the second conveying conduit 140; the engagement section 122 is disposed between the feed screw section 1211 and the discharge screw section 1212.

In one embodiment, the screw is divided into three segments (not shown), which are a feeding screw segment 1211, an engaging segment 122 and a discharging screw segment 1212, in order from the feeding port 111 to the second conveying pipe 140. The feeding screw section 1211 plays a feeding role, and after feeding, the feeding screw section 1211 guides powder to move towards the meshing section 122; the engaging section 122 is used for extruding, engaging or even premixing the powder, so that the powder becomes a readily soluble state; the discharge screw section 1212 receives the kneaded powder and guides the powder toward the second conveying pipe 140.

Furthermore, the liquid inlet 112 may also be correspondingly provided in the vicinity of the feed screw flights 1211, if premixing of the powder is desired. Referring to FIGS. 1 and 2, the powder and solution may now be fed simultaneously, with premixing being achieved after entering the intermeshing section 122.

As can be easily understood, the engaging section 122 mainly works on the powder to realize the pretreatment of the powder; that is, the engaging section 122 does not have an urging force to feed the powder forward. To avoid powder staying in the engaging section 122, the engaging section 122 should not be too long in length, and it is necessary to ensure that powder can flow out of the engaging section 122 by inertia (the feeding force given to the powder when the powder is conveyed by the threaded section 121) while ensuring that the engaging member 1221 is sufficiently worked on the powder.

In some cases, if the engaging sections 122 need to be set long to ensure kneading effect, a new screw section may be added between the engaging sections 122, and the powder is fed forward by the new screw section so that the powder enters another engaging section 122 to perform secondary kneading. If necessary, a plurality of sets of engaging segments 122 and screw segments 121 may be alternately arranged to achieve a plurality of kneads of the powder.

In one embodiment, the threaded section 121 further includes an auxiliary threaded section 1213, the auxiliary threaded section 1213 is disposed between the engagement sections 122, and divides the engagement section 122 into a first engagement section 1221 and a second engagement section 1222. Referring specifically to fig. 2, 6 or 7, in this case, in the first conveying pipe 110, the powder is subjected to two kneading treatments; the feed screw section 1211 guides the powder into the first engaging section 1221 to effect primary kneading of the powder; the feeding screw section 1211 gives a feeding force to the powder, which enables the powder to leave the first engaging section 1221 and enter the auxiliary screw section 1213; the auxiliary thread section 1213 gives a certain feeding force to the powder again, so that the powder enters the second meshing section 1222 to achieve secondary kneading; the powder exits the second engaging section 1222 into the discharge screw section 1212, is fed through the discharge screw section 1212, and finally enters the second conveying pipe 140.

Since the output end of the second conveying pipe 140 is substantially cylindrical, it can be seen that the powder material is cylindrical like the water flowing out of the water pipe when the powder material is output through the second conveying pipe 140. If the liquid supply device 200 only supplies liquid from one direction toward the output powder, it is not guaranteed that other powder deviated from the direction contacts the solution in time, and the difficulty of mixing is increased.

To this end, in one embodiment, the liquid supply device 200 includes a flow collecting channel 210, and the output end of the second conveying pipe 140 is inserted into the flow collecting channel 210; a plurality of branch pipes 220 disposed at intervals at an input end of the flow collecting channel 210 and communicating with the flow collecting channel 210; wherein the inner wall of the converging flow channel 210 is inclined towards the output end of the second conveying pipe 140; the solution introduced by the branch pipe 220 is guided by the inner wall of the flow gathering channel 210 and flows into the mixing chamber 310.

With particular reference to fig. 2 and 3, the output end of the second delivery duct 140 is inserted in the flow collection channel 210; the input end of the flow gathering channel 210 is communicated with the flow dividing pipeline 220, and the output end is communicated with the mixing chamber 310. Thus, the solution is input into the flow collecting channel 210 through the branch pipes 220, the diameter of the flow collecting channel 210 gradually decreases from the input end to the output end, and the solution is collected and guided to the mixing chamber 310, similar to a funnel. In this way, the solution discharged from the collecting channel 210 is substantially cylindrical and can contact the entire surface of the columnar powder.

By arranging the inner wall obliquely, the pipe diameter of the flow gathering channel 210 is gradually reduced from the input end to the output end; in addition to converging and leading, the funnel-shaped flow-gathering channel 210 can also accelerate the flow rate of the solution at the output end, so that the output solution has the potential of impacting the powder. With continued reference to FIG. 3, the output end of the second conveying pipe 140 meets the output end of the flow gathering channel 210, and when the powder flows out of the second conveying pipe 140, the outside of the second conveying pipe is the solution impacted, so that the solution can quickly and completely contact the powder.

Further, the branch pipe 220 is disposed at an angle to the flow collecting channel 210, and the solution output through the branch pipe 220 flows obliquely toward the inner wall of the flow collecting channel 210.

As can be easily understood, if the diversion conduit 220 is arranged in a vertical direction, the solution will directly rush into the flow gathering channel 210; at this time, unless a plurality of branch pipes 220 are closely arranged, the solutions output from the branch pipes 220 are spaced from each other, in this case, the powder material facing the gap between two adjacent solutions cannot directly contact the solutions during output.

By obliquely arranging the shunt pipe 220, the solution flowing out of the shunt pipe 220 obliquely rushes towards the inner wall of the flow gathering channel 210, on one hand, the inner wall can disperse the solution flowing out of the shunt pipe 220, so that a plurality of solutions can form confluence on the inner wall; on the other hand, the water flow rushed out in an inclined mode has certain inertia, after the solution contacts the inner wall of the flow gathering channel 210, the solution has a tendency of flowing downwards along the flow gathering channel 210 due to gravity, and the solution has a tendency of bypassing along the flow gathering channel 210 due to the inertia, so that the water flow rushed out in an inclined mode converges into a small vortex, powder can be better wrapped, the powder can be in overall contact with the powder, and the powder is easy to mix.

Further, referring to fig. 1 and 3, the flow collecting channel 210 is cylindrical, the input end of the flow collecting channel 210 has a cover plate, the cover plate is provided with a plurality of through holes arranged along the circumference, and the flow dividing pipes 220 are in one-to-one correspondence with the through holes. Thus, the diversion pipes 220 are distributed along a circumference, and can better converge the water flows, so as to form smooth converging water flow in the flow converging channel 210.

It should be added that any of the branch pipes 220 can be independently connected to a liquid supply device (not shown), so that each branch pipe 220 can independently supply liquid. Alternatively, the plurality of branch pipes 220 may supply liquid in a unified manner; specifically, referring to fig. 1 and 3, the liquid supply device is connected to a main water pipe 230, and the main water pipe 230 is connected to a plurality of branch pipes 220, so that the branch pipes 220 can branch off the solutions after the main water pipe 230 is supplied with liquid. Further, the water inlet channel 231 of the water main 230 may be arranged along a tangential direction of the pipe of the water main 230; thus, when the solution supply device supplies the solution to the water main 230 through the water inlet 231, the solution is flushed into the water main 230 in a tangential direction and can bypass the water main 230, thereby ensuring that the solution can flow into each of the branch pipes 220.

In order to facilitate the mixing of the powder and the solution in the mixing chamber 310, the mixing device 300 further includes an agitator 320 disposed in the mixing chamber 310.

Wherein, the stirrer 320 may adopt a set of independent stirring paddles to accelerate the flow of the solution in the mixing chamber 310, so as to facilitate the powder contacting the solution and mixing. Alternatively, the stirrer 320 may be a double planetary stirring paddle, and two sets of blades are arranged in a staggered manner, so that the powder can contact the solution and be mixed conveniently.

In one embodiment, referring to fig. 3, 4 and 5, agitator 320 comprises: a turntable 321, wherein the main body of the turntable 321 is in a circular truncated cone shape; the stirring blade 322, the tip of stirring blade 322 is laminated the side surface setting of carousel 321, and stirring blade 322 lengthwise extension inclines for the central axis of carousel 321.

Specifically, since the rotating disc 321 is substantially circular truncated cone-shaped, the outer diameter of the rotating disc 321 gradually increases as it extends inward from the input end of the mixing chamber 310; the stirring blade 322 is a blade that is disposed on the outer wall of the rotating disk 321 and protrudes outward. Because the stirring blade 322 is arranged on the outer wall of the rotating disc 321, the stirring blade 322 is gradually inclined outwards along with the inclination of the outer wall of the rotating disc 321, so that the action range of the stirring blade is enlarged.

A plurality of stirring blades 322 are arranged on the outer wall of the rotating disc 321 at intervals, and the plurality of stirring blades 322 are arranged around the central axis of the rotating disc 321 and are integrally in an outward diffusion configuration. Thus, when the stirring blade 322 rotates along with the turntable 321, the shearing stress of the stirrer 320 is gradually increased, and the stirring blade can better act on the solution and the powder to realize the mixing of the solution and the powder.

Further, the stirring blades 322 may be arranged in an arc along the turntable 321; for example, referring to fig. 4 and 5, a plurality of stirring blades 32 are circumferentially arranged on the turntable 321 such that the main body of the stirrer 320 takes the shape of a fanned-out skirt. The arc-shaped extending stirring blades 32 are similar to the spiral circulation shape when the solution forms a vortex, so that the stirring blades 32 can better contact and act on the solution and efficiently realize the mixing of the solution and the powder.

In addition, in order to rotate the turntable 321, in one embodiment, the agitator 320 further includes an agitation driving assembly (not shown, a rotation driving member such as a motor may be used), and the agitation driving assembly is connected to the turntable 321 and can drive the turntable 321 to rotate. In another embodiment, the turntable 321 may be connected to the screw mechanism 130; referring to fig. 2 specifically, the rotating disc 321 is connected to the screw rod 131, and the screw driving assembly 132 drives the screw rod 131 to rotate and drives the rotating disc 321 to rotate synchronously.

As can be easily understood, when the turntable 321 rotates to make pulp, heat is generated; in order to prevent heat from affecting the operation of the apparatus or the quality of the slurry, the mixing device 300 further includes a cooling chamber 330, and the mixing chamber 310 is disposed in the cooling chamber 330; the cooling chamber 330 is provided with a water inlet 331 and a water outlet 332, and the cooling liquid enters the cooling chamber 330 through the water inlet 331 and is finally discharged through the water outlet 332.

At this time, the mixing chamber 310 is "surrounded" by the cooling chamber 330, and heat generated in the mixing chamber 310 can be taken away by the circulation of the cooling fluid, thereby ensuring a stable temperature in the mixing chamber 310.

The cooling liquid may be ordinary water or other solutions with low temperature, and the present application is not limited specifically.

In one embodiment, referring to fig. 3, the cooling chamber 330 is connected to the flow gathering channel 210; the cooling chamber 330 is integrally formed around the inner wall 334 and includes an outer wall 333 and an inner wall 334, a sealed inlet chamber 335 is formed between the outer wall 333 and the inner wall 334, and the mixing chamber 310 is formed between the inner wall 334. The water inlet 331 and the water outlet 332 are provided at two different places of the outer wall 333 and communicate with the water inlet chamber 335. The second delivery conduit 140 passes through the converging flow passage 210, opposite the mixing chamber 310; when the turntable 321 rotates to make pulp, the generated heat is transferred to the inner wall 334; when the cooling liquid passes through the water inlet cavity 335, the cooling liquid can take away the heat on the inner wall 334, thereby performing a cooling function.

Further, to define the direction of flow of the coolant in the inlet chamber 335, a continuous, ascending helical track 336 is provided between the outer wall 333 and the inner wall 334; at this time, one of the water inlet 331 and the water outlet 332 is disposed at the upper side, and the other is disposed at the lower side, so that the coolant can flow toward the water outlet 332 along the flow channel formed by the spiral rail 336 after entering the water inlet chamber 335 through the water inlet 331, thereby extending the movement path of the coolant and securing the cooling effect.

Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. Such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements but may alternatively include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The above description is only an example of the present application and is not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings, or which are directly or indirectly applied to other related technical fields, are intended to be included within the scope of the present application.

Claims (10)

1. A pulping apparatus, comprising:

a feeding device (100) for feeding powder;

a liquid supply device (200) for inputting a solution;

a mixing device (300), wherein the mixing device (300) comprises a mixing chamber (310), the mixing chamber (310) is communicated with the feeding device (100) and the liquid supply device (200), and powder and solution are mixed into slurry in the mixing chamber (310);

the feeder device (100) comprises:

the powder conveying device comprises a first conveying pipeline (110), wherein a feeding hole (111) is formed in the first conveying pipeline (110), and powder enters the first conveying pipeline (110) through the feeding hole (111);

a twin screw mechanism (120) disposed in the first conveying duct (110); the double-screw mechanism (120) comprises two screws arranged side by side, and a threaded section (121) and an engaging section (122) are arranged on any one of the screws; the meshing sections (122) of the two screws are meshed with each other, and when powder flows through the meshing sections (122), the meshing sections (122) of the two screws knead the powder;

a second delivery duct (140) communicating the first delivery duct (110) and the mixing device (300);

the conveying direction of the first conveying pipeline (110) and the second conveying pipeline (140) is different.

2. A pulping apparatus according to claim 1, characterized in that the liquid supply device (200) comprises:

a flow gathering channel (210), wherein the output end of the second conveying pipeline (140) penetrates through the flow gathering channel (210);

the plurality of branch pipelines (220) are arranged at the input end of the flow gathering channel (210) at intervals and are communicated with the flow gathering channel (210);

wherein the inner wall of the flow focusing channel (210) is inclined towards the output end of the second conveying pipe (140); the solution input by the diversion pipeline (220) is guided and flows into the mixing chamber (310) through the inner wall of the flow gathering channel (210).

3. The pulping apparatus according to claim 2, wherein the flow dividing pipe (220) is arranged at an angle to the flow collecting channel (210), and the solution output through the flow dividing pipe (220) flows obliquely to the inner wall of the flow collecting channel (210).

4. The pulping apparatus of claim 1, wherein the mixing device (300) further comprises an agitator (320) disposed in the mixing chamber (310); the agitator (320) includes:

the main body of the turntable (321) is in a circular truncated cone shape;

stirring vane (322), the tip laminating of stirring vane (322) the setting of carousel (321) side surface, just stirring vane (322) lengthwise extension line is relative the central axis slope of carousel (321).

5. The pulping apparatus of claim 1, wherein the mixing device (300) further comprises a cooling chamber (330), the mixing chamber (310) being provided in the cooling chamber (330);

the cooling chamber (330) is provided with a water inlet (331) and a water outlet (332), and cooling liquid enters the cooling chamber (330) through the water inlet (331) and is finally discharged through the water outlet (332).

6. A pulping apparatus according to any of claims 1-5, characterized in that the first conveying duct (110) is arranged horizontally; the two screws are arranged in the first conveying pipeline (110) side by side along the horizontal direction; and/or the presence of a gas in the gas,

the second conveying pipe (140) is vertically arranged.

7. A pulping apparatus according to any of claims 1-5, characterized in that the feeding device (100) further comprises a screw mechanism (130) arranged in the second conveying pipe (140);

the screw mechanism (130) comprises a screw rod (131) and a screw driving component (132), wherein the screw driving component (132) is connected with the screw rod (131) and can drive the screw rod (131) to rotate, so that the powder is pushed to feed to the mixing device (300).

8. A pulping apparatus according to any of claims 1-5, characterized in that the screw has alternating screw flights (121) and engaging flights (122);

the screw thread section (121) comprises a feeding screw thread section (1211) and a discharging screw thread section (1212), and the feeding hole (111) faces to the feeding screw thread section (1211); the discharge thread section (1212) faces the second conveying pipe (140);

the engagement section (122) is disposed between the feed screw thread section (1211) and the discharge screw thread section (1212).

9. The pulping apparatus of claim 8, wherein the threaded section (121) further comprises an auxiliary threaded section (1213), the auxiliary threaded section (1213) being provided between the engagement sections (122) dividing the engagement sections (122) into a first engagement section (1221) and a second engagement section (1222).

10. Pulping apparatus according to any of claims 1-5, characterized in that the first conveyor (110) is provided with an inlet (112) through which the solution is fed into the first conveyor (110) for premixing with the meal.

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